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Measurement and Instrumentation

Measurement and Instrumentation
The coil of a moving coil meter has 100 turns, is 40 mm long and 30 mm wide. The control torque is 240×10-6 N-m on full scale. If magnetic flux density is 1Wb/m2 range of meter is

 2 mA.
 3 mA.
 4 mA.
 1 mA.

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Measurement and Instrumentation
The adjustment of position of shading bands, in an energy meter is done to provide

Breaking torque
Creep compensation
Friction compensation
None of the listed here

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Measurement and Instrumentation
The total current I = I1 + I2 in a circuit is measured as I1 = 150 ± 1A , I2 = 250 ± 2A, where the limits of error are as standard deviations. I is measured as

 (400 ± 1.5) A
 (400 ± 3) A
 (400 ± 1) A
 (400 ± 2.24) A

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Measurement and Instrumentation
An average reading digital multimeter reads 10 V when fed a triangular wave, symmetric about the axis. For the same input, an rms reading meter will read

 20√3.
 10.
  10√3.
 20.

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Measurement and Instrumentation
The form factor in AC is the ratio of

Peak value to average value
Rms value to peak value
Rms value to average value
Peak value to rms value

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Measurement and Instrumentation
The scale of hot wire ammeter is

  Non Linear.
 Linear.
 Absloute linear.
 Cramped.

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MORE MCQ ON Measurement and Instrumentation

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